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what did we learn from AC2013? #265249
09/26/13 07:29 AM
09/26/13 07:29 AM
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brobru Offline OP
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..these are just my ideas....please comment..
1. A c will not go back to non foil design..
..in fact i predict bow foils to stabilize the platform
..ORACLE being a technology firm will introduce more systems.
....these boats may evolve to DRONE-LIKE CONTROLS...
...someone onshore watching data readouts will control the foils and sail
..much pressure to abandon design,..REMEMBER THE STP TURBINE INDY CAR?...THE POWERS TO BE MADE IT DISAPPEAR,..YES?WE ALL KNOW THE OLD-SCHOOL Y.C. TYPE..BLUE BLAZERS AND ALL!
..BUT IT WAS VERY EXCITING!NOEW IS THEY CAN KEEP THE CREW FROM FALLING OFF THE DARN BOAT!DID'NT HOBIE MAKE A trifoiler,.a few years back?what happened to that?

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Re: what did we learn from AC2013? [Re: brobru] #265256
09/26/13 07:48 AM
09/26/13 07:48 AM
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Daytona Beach Florida
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orphan Offline
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They need to get back to sailing by human hand only. To me electronic controls fall in the same area as any other non human power system system. It equates to putting traction control computers on race cars. It is no longer the sailor sailing the boat. It takes a lot more skill to trim sails when you a grinding them in and out vs charging a hydrolic system the pressing a servo switch to trim in and out. Technology is great but lets keep the cup a SAILING race for SAILORS.

Re: what did we learn from AC2013? [Re: brobru] #265257
09/26/13 07:48 AM
09/26/13 07:48 AM
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Timbo Offline
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I hope they keep it fast, on foils, but hey, you never know what Larry's got up his sleeve!

Here's the Hobie Trifoiler:

https://www.youtube.com/watch?v=zXSgZCDVWOM

I was at the Wildcat Regatta, Lake Eustis, FL many years ago when there were several Trifoilers (last time I saw one) but the wind was very light and there were lots of weeds in the lake, needless to say, they were not foiling, they were incredibly slow.

I think one of the things that made this such a great AC was the LOCATION, Larry picked a great spot, with WIND!! Guaranteed Wind, on just about every day, but you saw in that one light air race, just how slow a foiler is when it's too light to foil!

Kenny and Gary mentioned going back to Newport, but as I recall watching the AC's in Newport, they were mostly light air affairs. Same with San Diego. If you want to go fast, you need WIND! EVERY DAY! The only place (in the USA) that has that kind of wind, almost every day, is San Francisco Bay.

As Ian Murray said when that race ran to the 40 minute limit, "All that stuff underneath that makes them so fast in heavy wind, just adds drag in light air."


Blade F16
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Re: what did we learn from AC2013? [Re: orphan] #265259
09/26/13 07:54 AM
09/26/13 07:54 AM
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Originally Posted by orphan
They need to get back to sailing by human hand only. To me electronic controls fall in the same area as any other non human power system system. It equates to putting traction control computers on race cars. It is no longer the sailor sailing the boat. It takes a lot more skill to trim sails when you a grinding them in and out vs charging a hydrolic system the pressing a servo switch to trim in and out. Technology is great but lets keep the cup a SAILING race for SAILORS.


I agree, if they would bring it back to the 45 footers, soft sails, nationality rules, and allow full foiling, they could do it all by hand, with no hydrolics or electrics allowed or needed.

I know that would be a step backwards, in development, but if they really want 10-15 teams to show up, they are going to have to reign in the costs.


Blade F16
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Re: what did we learn from AC2013? [Re: brobru] #265280
09/26/13 10:01 AM
09/26/13 10:01 AM
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bacho Offline
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That all sounds boring, this is the AC!

Re: what did we learn from AC2013? [Re: bacho] #265282
09/26/13 10:03 AM
09/26/13 10:03 AM
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Originally Posted by bacho
That all sounds boring, this is the AC!


You're right, this IS the AC, the AC that only a couple teams can afford to compete in, which may be exactly what Larry really wants. He stands less of a chance of losing that way.


Blade F16
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Re: what did we learn from AC2013? [Re: brobru] #265287
09/26/13 10:29 AM
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Soooo...you guys also don't want to see them have GPS units and PDA's either? Heck, let's just not even allow computers at any point of the process...3D and other digital design, gone. Digital flow or computer performed stress analysis, gone. Wait a minute! Calculators have IC chips too...gone! Design the boats with a slide rule, baby! Give the boys a sextant and a sail tied to two logs and let them go at each other! Hell yeah!

I don't have a problem with it as long as the motive power comes from the wind or the muscle on the boat. America's cup is about technology.


Jake Kohl
Re: what did we learn from AC2013? [Re: brobru] #265288
09/26/13 10:35 AM
09/26/13 10:35 AM
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I think that if you try to restrict it too much, you lose the allure of the cup. However, if you leave the doors wide open then you'll just get HAL9000 driving the boats which isn't something that we want either.

I think that the way the next cup should works is that when teams sign up and put down their entry fee, they get a "template boat". Not a design... not a set of plans, but an actual BOAT. If you want a second one, then you can buy a second one but no more than two (unless you destroy one of them)

From that point forwards, the rules allow you to make modifications to that boat to a certain limit.

What this means is that the playing field is more level. The major design costs would be manageable and you'd basically all be starting on square 1 in terms of build/design/technology.

Re: what did we learn from AC2013? [Re: Jake] #265289
09/26/13 10:36 AM
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You guys sound like a bunch of mono-hull sailors did about a couple years back whining about the cup being on multi-hulls and how awful it would be.


Jake Kohl
Re: what did we learn from AC2013? [Re: brobru] #265291
09/26/13 10:42 AM
09/26/13 10:42 AM
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Timbo Offline
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So Jake, you'd allow a computer to control the ride hight on a foiling AC cat, as long as the hydrolics are human powered?

So how about letting the computer help steer the boat too, and trim the wing, just like it does with the foils? I see no difference.

Like I said earlier, where do you draw the line on what the computers get to control, vs. the humans?

Humans can turn a handle and pump up a hydrolic reservoir, and let the computers do the rest, but is that Sailing?

W T F?

How about we let them have all the electricly powered hydrolics they want, but NOTHING is computer controlled, ie HUMANS have to trim the wing, and the foils, and steer the boat. Humans would have to actually SAIL the boats, what a concept!


Blade F16
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Re: what did we learn from AC2013? [Re: brobru] #265294
09/26/13 11:06 AM
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I say we let them make it as automated as they like. When R2D2 wins the cup one day we can re-evaluate. Until then we can all enjoy the trickle down tech and enjoy faster boats.

Re: what did we learn from AC2013? [Re: brobru] #265295
09/26/13 11:12 AM
09/26/13 11:12 AM
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Jake - I'm not poopooing the event whatsoever. I'll be happier than a pig in **** if they just keep the current format honestly.

But we all realize that we need more competitors in the LV in order to keep this thing sustainable.

Both sides in the finals clearly stated that there needs to be a way of keeping costs under control. Unlimited development isn't the way to keep costs contained unfortunately.

I think you're vying for a spot on a team as an engineer laugh

Re: what did we learn from AC2013? [Re: ThunderMuffin] #265298
09/26/13 11:17 AM
09/26/13 11:17 AM
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let the LV series be "standardized". The AC finals should not be.

Look at the potential trickle down technology (that's now proven somewhat) that might eventually enhance our own amateurish sailing


Jay

Re: what did we learn from AC2013? [Re: brobru] #265304
09/26/13 11:50 AM
09/26/13 11:50 AM
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All they really need to do now, to ride the wave of this AC, is modify the AC 45's they've already got, to foilers, and run the same AC World Series regatta next summer, in all the same ports around the world, see if they can get 10-15 teams entered and let them all lean to foil.

I wonder how fast one of the AC 45's will go on foils?

Only problem with that is, there were some pretty light air races (and locations) around the world, so it wouldn't be nearly as exciting to watch if it were a light air location.

Perhaps each team would stock two sets of boards, one for big wind foiling, and one conventional set, for lighter air?

The whole foiling thing only came about because the Kiwi's realized SFO Bay has enough wind to make it worth while. That kind of wind is hard to find in many other locations.


Blade F16
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Re: what did we learn from AC2013? [Re: brobru] #265308
09/26/13 12:23 PM
09/26/13 12:23 PM
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There is a little more to it than just installing another set of boards.

I would like to see the AC45s return, largely unchanged. I don't think used 45s would bring many if any new teams because the cost of the boat is small in the grand scheme.

Re: what did we learn from AC2013? [Re: Timbo] #265311
09/26/13 01:04 PM
09/26/13 01:04 PM
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Jake Offline
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Originally Posted by Timbo
So Jake, you'd allow a computer to control the ride hight on a foiling AC cat, as long as the hydrolics are human powered?

So how about letting the computer help steer the boat too, and trim the wing, just like it does with the foils? I see no difference.

Like I said earlier, where do you draw the line on what the computers get to control, vs. the humans?

Humans can turn a handle and pump up a hydrolic reservoir, and let the computers do the rest, but is that Sailing?

W T F?

How about we let them have all the electricly powered hydrolics they want, but NOTHING is computer controlled, ie HUMANS have to trim the wing, and the foils, and steer the boat. Humans would have to actually SAIL the boats, what a concept!



Fair point. I'll have to ponder that. Even F1 limits traction control and slip feedback to the driver and I wouldn't want to see a boat that has a bunch of football players just grinding...I'm not sure it would come to that though....


Jake Kohl
Re: what did we learn from AC2013? [Re: Jake] #265316
09/26/13 02:36 PM
09/26/13 02:36 PM
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Florida Suncoast, Dunedin Caus...
catman Offline
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Originally Posted by Jake
Originally Posted by Timbo
So Jake, you'd allow a computer to control the ride hight on a foiling AC cat, as long as the hydraulics are human powered?

So how about letting the computer help steer the boat too, and trim the wing, just like it does with the foils? I see no difference.

Like I said earlier, where do you draw the line on what the computers get to control, vs. the humans?

Humans can turn a handle and pump up a hydraulic reservoir, and let the computers do the rest, but is that Sailing?

W T F?

How about we let them have all the electricly powered hydrolics they want, but NOTHING is computer controlled, ie HUMANS have to trim the wing, and the foils, and steer the boat. Humans would have to actually SAIL the boats, what a concept!



Fair point. I'll have to ponder that. Even F1 limits traction control and slip feedback to the driver and I wouldn't want to see a boat that has a bunch of football players just grinding...I'm not sure it would come to that though....


Don't forget this a design and tech competition also and hydraulics have been on sailboats since the 70's at least.


Have Fun
Re: what did we learn from AC2013? [Re: brobru] #265319
09/26/13 03:00 PM
09/26/13 03:00 PM
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So how does that work? The grinders are compressing air or...


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'When you have a lot of things to do, it's best to get your nap out of the way first.

Re: what did we learn from AC2013? [Re: pgp] #265320
09/26/13 03:06 PM
09/26/13 03:06 PM
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Originally Posted by pgp
So how does that work? The grinders are compressing air or...


Hydraulic fluid. They have hydraulic accumulators onboard and they are pumping up the pressure so the push button stations (and apparently computerized valves) can do the rest.


Jake Kohl
Re: what did we learn from AC2013? [Re: brobru] #265323
09/26/13 03:26 PM
09/26/13 03:26 PM
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This morning when they were talking about the AC on some news channel, they did mention that there IS a Football Player grinding on Oracle! I missed his name, and it may have been a European or Aussie Footballer for all I know.

The point is, if all you need the humans on board for is to grind up some hydrolics, well, what's the point? Hire a bunch of professional bicycle racers, put foot cranks on the pumps, sit them down in the wells and let them peddle up some PSI, then let the computers fine tune the foils, trim the wing and tweak the rudders too...

Is that "Sailing" or is that HAL running a sailboat?


Blade F16
#777
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